21070147304

素因数分解:

$2^3\times {\mathrm{1223}}^1\times {\mathrm{2153531}}^1$

素因数の和:2154760

約数の個数: 16

約数和(自身を含む): 39538847520

約数和(自身を除く): 18468700216

約数列:

[1, 2, 4, 8, 1223, 2446, 4892, 9784, 2153531, 4307062, 8614124, 17228248, 2633768413, 5267536826, 10535073652, 21070147304]

約数ペア:

[(1, 21070147304), (2, 10535073652), (4, 5267536826), (8, 2633768413), (1223, 17228248), (2446, 8614124), (4892, 4307062), (9784, 2153531)]